The Chelsea Timemaster Series of Commercial Marine Clocks (non-striking) is the pinnacle of maritime timekeeping.

Anailable in both the mechanical and quartz models, they have been used for many years by the United States Navy in the demanding shipboard environment – setting the standard long before satellites were used for navigation – and still in use today.

This Chelsea Timemaster has a high precision movement (mechanical or quartz) as specified by the U.S. Military. It meets or exceeds U. S. Navy specifications according to MIL SPEC 1194C & 1194D. The Chelsea Timemaster clocks have passed U. S. Navy tests for accuracy, shock, vibration, temperature and humidity extremes.

The Timemaster is suitable for use on the enclosed bridge, wheelhouse, radio room, and aviation ready-room, on any Government, Commercial or Pleasure vessel or of course, in any home.

Timemaster is not included in the Chelsea catalog. Produced under various contracts which offer limited availability to the civilian market, and available only through authorized dealers by special order.